Auxter, D., Huettig, C., & Pyfer, J. (2001). Principles and methods of adapted physical education and recreation (9th ed.). Boston: McGraw-Hill.

Auxter, David, Carol Huettig, و Jean Pyfer. Principles and Methods of Adapted Physical Education and Recreation. 9th ed. Boston: McGraw-Hill, 2001.

Auxter, David, Carol Huettig, و Jean Pyfer. Principles and Methods of Adapted Physical Education and Recreation. 9th ed. Boston: McGraw-Hill, 2001.